Specific code 2014 ICD-9-CM Diagnosis Code 758.0
Down's syndrome
  • Billable Code
  • ICD-9-CM 758.0 will be replaced by an equivalent ICD-10-CM code (or codes) when the United States transitions from ICD-9-CM to ICD-10-CM on October 1, 2015.
  • ICD-9-CM 758.0 is a billable medical code that can be used to specify a diagnosis on a reimbursement claim.
Disease Synonyms
  • Complete trisomy 21 syndrome
  • Downs syndrome
  • Trisomy 21, Down syndrome
Clinical Information
  • A chromosomal abnormality consisting of the presence of a third copy of chromosome 21 in somatic cells.
  • A chromosomal dysgenesis syndrome resulting from a triplication or translocation of chromosome 21. Down syndrome occurs in approximately 1:700 live births. Abnormalities are variable from individual to individual and may include mental retardation, retarded growth, flat hypoplastic face with short nose, prominent epicanthic skin folds, small low-set ears with prominent antihelix, fissured and thickened tongue, laxness of joint ligaments, pelvic dysplasia, broad hands and feet, stubby fingers, transverse palmar crease, lenticular opacities and heart disease. Patients with down syndrome have an estimated 10 to 30-fold increased risk for leukemia; most have symptoms of alzheimer's disease by age 40. Also known as trisomy 21 syndrome.
  • A disorder caused by the presence of an extra chromosome 21 and characterized by mental retardation and distinguishing physical features.
  • Chromosome disorder associated either with an extra chromosome 21 or an effective trisomy for chromosome 21; clinical manifestations include hypotonia, short stature, brachycephaly, upslanting palpebral fissures, epicanthus, brushfield spots on the iris, protruding tongue, small ears, short, broad hands, fifth finger clinodactyly, simian crease, and moderate to severe mental retardation.
  • The most frequently occurring mental retardation/multiple anomaly syndrome usually involving more than 100 individual defects. Typical facies with upslanting palpebral fissures is the characteristic feature of this syndrome (hence the offensive designations "mongoloid idiocy" and "mongolism"). A wide range other defects, such as congenital heart diseases, respiratory disorders, and leukemia, may be associated. Down syndrome patients who survive into late adulthood may develop alzheimer syndrome.
Applies To
  • Mongolism
  • Translocation Down's syndrome
  • Trisomy:
    • 21 or 22
    • G
Convert to ICD-10-CM: 758.0 converts approximately to:
  • 2014 ICD-10-CM Q90.9 Down syndrome, unspecified
ICD-9-CM Volume 2 Index entries containing back-references to 758.0:
  • Abnormal, abnormality, abnormalities - see also Anomaly
  • Accessory (congenital)
    • autosome(s) NEC 758.5
      • 21 or 22 758.0
  • Additional - see also Accessory
  • Anomaly, anomalous (congenital) (unspecified type) 759.9
    • Langdon Down (mongolism) 758.0
  • Disease, diseased - see also Syndrome
    • Down's (mongolism) 758.0
  • Down's disease or syndrome (mongolism) 758.0
  • G-trisomy 758.0
  • Idiot, idiocy (congenital) 318.2
    • Mongolian 758.0
  • Langdon Down's syndrome (mongolism) 758.0
  • Mongolian, mongolianism, mongolism, mongoloid 758.0
  • Syndrome - see also Disease
    • Down's (mongolism) 758.0
    • Langdon Down (mongolism) 758.0
    • trisomy NEC 758.5
      • 13 or D1 758.1
      • 16-18 or E 758.2
      • 18 or E3 758.2
      • 20 758.5
      • 21 or G (mongolism) 758.0
      • 22 or G (mongolism) 758.0
      • G 758.0
  • Translocation
    • Down's syndrome 758.0
  • Trisomy (syndrome) NEC 758.5
    • 21 (partial) 758.0
    • 22 758.0
    • G (group) 758.0
    • group G 758.0
ICD-9-CM codes are used in medical billing and coding to describe diseases, injuries, symptoms and conditions. ICD-9-CM 758.0 is one of thousands of ICD-9-CM codes used in healthcare. Although ICD-9-CM and CPT codes are largely numeric, they differ in that CPT codes describe medical procedures and services. Can't find a code? Start at the root of ICD-9-CM, check the 2014 ICD-9-CM Index or use the search engine at the top of this page to lookup any code.